CBSE Class 7 Science Sample Paper Set 20

CBSE Class 7 Science Sample Paper Set T.Sample Papers are the very important for every student. The sample papers should be practiced to gain extra marks in examinations. The sample papers have been prepared based on summative assessment1 and summative assessment 2 pattern. The sample papers have been prepared based on pattern of last year examinations and as per latest changes in the syllabus. Students, teachers and parents can download all CBSE educational material and very well prepared worksheets from this website.  All CBSE educational material is developed by our panel of teachers, have also been submitted by CBSE teachers and students. 

Section- A

Q.1. Fill in the blanks:

(i) In vehicles, the device that measures distance covered is __________ and the device that measures speed is ___________.

Q.2. Draw the distance time graph for a truck parked on the road.

Q.3. Answer in one word- 

(i) Image that can be obtained on screen.

(ii) The method of heat transfer in a steel rod.

Q.4. What are the two laws of reflection? 

Q.5. Convert 45ºC to ºF. 

Q.6. (i) Define convection.

(ii)Find the time period when the pendulum completes 30 oscillations in 15 seconds.

Q.7. Explain with diagram, why sea breeze occurs during day time? 

Q.8. Give reasons: 

(i) Why do we use woollen clothes in winter?

(ii) Why does the word „PHYSICS‟ appear as „ ‟ when we look at it in a mirror? Explain. 

Q.9. Give reasons: (1½+ 1½=3)

(i) Why do we use woollen clothes in winter?

(ii) Why does the word „PHYSICS‟ appear as „ ‟ when we look at it in a mirror? Explain.

Q.10. (3)

Identify and define A and B in the above diagram.

Q.11. (i) What is speed? (1+3+1=5)

(ii) Plot the following distance time graph on the graph paper.

Time (s)      2       4      6       8

Distance (m) 4      8      12     16

(iii)Which type of motion is represented by the above graph?

Section- B (CHEMISTRY)[26]

Q.1 The process by which plants loose water is known as (1)

(i) Perspiration

(ii) Transpiration

(iii) Infiltration

(iv) Condensation

Q.2 Which year is observed as the international year of freshwater (1)

(i) 2005

(ii) 2004

(iii) 2003

(iv) 2007

Q.3 The chemical formula of potassium hydroxide is (1)

(i) KOH

(ii) NaOH

(iii) Ca(OH)₂

(iv) Mg(OH)₂

Q.4 Which of these is not an Indian breed of sheep (1)

(i) Lohi

(ii) Nali

(iii) Mooga

(iv) Patanwadi

Q.5 Give one word: (1)

(i) Traditional way of collecting water.

(ii) Water stored between layers of hard rock below water table.

Q.6 (i) Which liquid is an excellent solvent? (½+1+½=2)

(ii)Mention the importance of this liquid in human body. (2 points)

(iii)What is the major cause of its depletion under the ground?

Q.7 Differentiate between rain water harvesting and drip irrigation. (2 points) (2)

Q.8 (i)If the soil is basic, organic matter is added to it- (1+½=1½)

(a) Why is it done so?

(b) What should be added if the soil is acidic?

(ii)Give one example of an organic acid. (½)

Q.9 Draw the life cycle of silk moth. (2)

Q.10 (i) Tassar, mooga,eri, pashmina. Choose the odd one out and give reason. (1½+½=2)

(ii)What is the scientific name of mulberry tree?

Q.11 (i) Name the most common silk moth. (½)

(ii)State 2 characteristics of the silk produced by silk moth. (1)

(iii)What is a cocoon? Name the process involved in taking out silk thread from cocoon. (1+½=1½)

Q.12 (i) Name the processes involved in label (i) and (ii) of this figure. (1+2= 3)

(ii) Nearly three fourths of the earth is covered with water, yet there is an acute scarcity of water in many parts of the world. Give two reasons

Q.13

(i) What is the colour of the flower drawn in the picture with the soap solution? 

(ii) What is the indicator used here? Define indicators. (½+1= 1½)

(iii) Will there be any colour change if we would have used vinegar to make the flower. Why? (½+1= 1½)

(iv) What is the chemical name of the base present in soap solution? (½)

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